Lexi Koller

Sun photo by Jed Kirschbaum

Lexi Koller, 2, reaches for soap bubbles as her mother, Melissa Koller, watches her play. Lexi's degree of involvement in watching and tracking the bubbles is being evaluated by medical staff at the Kennedy Krieger Institute, who are looking for signs of autism.

Lexi Koller, 2, reaches for soap bubbles as her mother, Melissa Koller, watches her play. Lexi's degree of involvement in watching and tracking the bubbles is being evaluated by medical staff at the Kennedy Krieger Institute, who are looking for signs of autism. (Sun photo by Jed Kirschbaum)

Lexi Koller, 2, reaches for soap bubbles as her mother, Melissa Koller, watches her play. Lexi's degree of involvement in watching and tracking the bubbles is being evaluated by medical staff at the Kennedy Krieger Institute, who are looking for signs of autism.